advantage

Compared with mechanical transmission and electrical transmission, hydraulic transmission has the following advantages:

1. Various components of hydraulic transmission can be arranged conveniently and flexibly according to needs.

2, light weight, small size, small motion inertia, fast response [2].

3. It is easy to operate and control, and can realize a wide range of stepless speed regulation (speed regulation range reaches 2000:1).

4. It can automatically realize overload protection.

5. Mineral oil is generally used as the working medium, the relative moving surface can be self-lubricated, and the service life is long.

6. It is easy to realize linear motion.

7. It is easy to realize the automation of the machine. When the electro-hydraulic joint control is adopted, not only a higher degree of automatic control process can be realized, but also remote control can be realized.

shortcoming

1. Due to the large resistance loss and leakage of fluid flow, the efficiency is low. If not handled properly, leakage not only pollutes the site, but may also cause fire and explosion accidents.

2. Since the working performance is easily affected by temperature changes, it is not suitable to work under very high or very low temperature conditions.

3. The manufacturing precision of hydraulic components is high, so the price is more expensive.

4. Due to the leakage of liquid medium and the influence of compressibility, strict transmission ratio cannot be obtained.

5. When the hydraulic transmission fails, it is difficult to find the cause; the use and maintenance require a higher technical level.